Double-layer tube efficient mercury-free energy-saving lamp

Abstract

The invention provides a double-layer tube efficient mercury-free energy-saving lamp. A lamp tube of the lamp is of a double-layer lamp tube structure composed of an inner-layer glass tube and an outer-layer glass tube, an inner wall of the outer-layer glass tube is coated with fluorescent powder, the inner-layer glass tube and the outer-layer glass tube is a whole formed by sintering respective two ends together, and one sintered end is provided with one exhaust pipe for sucking vacuum and filling gas into the lamp tube. Two ends of the lamp tube are respectively connected with a conducting material of a conducting layer of a connecting outer-layer tube and a conducting material of a conducting layer of a connecting inner-layer tube, and the conducting materials are provided with metal guide wires led out of the lamp tube. A work principle of the double-layer tube efficient mercury-free energy-saving lamp is that the conducting material of the conducting layer of the connecting outer-layer tube and the conducting material of the conducting layer of the connecting inner-layer tube produces ionization induction after receives current of a control output of an electronic circuit, inducts and activates fluorescent powder on the surface of the lamp tube, and activates the fluorescent powder under the effect of inert gases including neon to enable energy-saving lamp to be lightened continuously so as to convert electric energy into light energy.

Description

technical field [0001] The invention relates to a novel high-efficiency electro-optical conversion technology, which belongs to the electric light source industry of metal processing, glass processing and electronic circuit design. Background technique [0002] At present, the working principle of ordinary energy-saving lamps on the market is that when the filament of the lamp tube is heated to a temperature of 1160K by the ballast, the filament starts to emit electrons, and the electrons collide with argon atoms to produce inelastic collisions. After the argon atoms collide with energy, they collide with mercury atoms. After absorbing energy, mercury atoms transition to generate ionization, and emit 253.7nm ultraviolet rays, which excite phosphors to emit light. Due to the physical nature of the filament, its service life is limited to 5,000 hours, and because the filament generates heat when it is powered on, the conversion efficiency is low in the process of converting el...

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Problems solved by technology

[0003] In order to overcome the shortcomings of serious mercury pollution and short service life of existing energy-saving lamps, the present invention provides a double-tube high-efficiency mercury-free energy-saving lamp. The lamp tube is a double-layer lamp tube structure composed of inner and outer glass tubes. The inner wall of the outer tube is coated with fluorescent powder, and the outer wall of the inner tube is coated with fluorescent powder. The inner and outer lamp tubes are a whole formed by sintering their two ends together. There is a tube at the sintered end for extracting the lamp tube. Vacuum and gas-filled exhaust pipes; the two ends of the lamp tube have conductive materials connected to the conductive layer of the outer tube and conductive materials connected to the conductive layer of the inner tube respectively, and the conductive material has a metal guide wire leading out of the lamp tube

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